@article{ref1,
title="The large city as a living space for man",
journal="Studium Generale",
year="1971",
author="Jürgens, H. W.",
volume="24",
number="2",
pages="264-279",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0039-4149",
doi="",
url="http://dx.doi.org/"
}